Table 3.
Mitral valve pathology and echocardiographic parameters.
| Mitral Valve Pathology | |||||
|---|---|---|---|---|---|
| MICS-MITRAL | Sternotomy | p-Value | |||
| n/N | % | n/N | % | ||
| Degenerative vs. functional | N = 160 | N = 302 | |||
| Degenerative, n | 116/160 | 72.5 | 192/302 | 63.6 | 0.04 * |
| Functional, n | 36/160 | 22.5 | 96/302 | 31.8 | |
| Carpentier classification | N = 159 | N = 313 | |||
| Type I, n | 37/159 | 23.3 | 97/313 | 31 | ≤0.001 ** |
| Type II, n | 115/159 | 72.3 | 168/313 | 53.6 | |
| Type IIIa, n | 6/159 | 3.8 | 44/313 | 14.1 | |
| Type IIIb, n | 1/159 | 0.63 | 4/313 | 1.3 | |
| Prolapse site | N = 160 | N = 318 | |||
| AML, n | 9/160 | 5.6 | 38/318 | 12 | ≤0.001 ** |
| PML, n | 100/160 | 62.5 | 109/318 | 34.3 | |
| Bileaflet, n | 4/160 | 2.5 | 19/318 | 6 | |
| Flail | N = 160 | N = 318 | |||
| No flail, n | 123/160 | 76.9 | 50/328 | 84.2 | ≤0.001 ** |
| AML, n | 1/160 | 0.6 | 17/318 | 5.4 | |
| PML, n | 36/160 | 22.5 | 33/318 | 10.4 | |
| Restricted leaflet motion | N = 160 | N = 318 | |||
| AML, n | 4/160 | 2.5 | 4/318 | 1.3 | ≤0.001 ** |
| PML, n | 11/160 | 6 | 19/318 | 6 | |
| Bileaflet, n | 3/160 | 1.9 | 45/318 | 14.2 | |
| Annulus dilatation, n | N = 160 | N = 318 | |||
| 86/160 | 53.8 | 159/318 | 50 | 0.44 | |
Note: Bold values indicate statistical significance: *, p ≤ 0.05; **, p ≤ 0.01. Abbreviations: MICS-MITRAL, minimally invasive mitral valve surgery; AML, anterior mitral leaflet; PML, posterior mitral leaflet.